8. Find the solution set of quadratic equation b2 - 2 - 3 - 0 by completing the square. A. 1, -3 C. 2, -4 B. 2. 4 D. -1, 3 9. What are the roots of the quadratic equation x2 + 5x 6? A. 2, 3 C. -1,6 B. 3.-4 D. -2, -3 10. What must be added to x2 + 22x + to make it a perfect square trinomial? A. 100 C. 112 B. 110 D. 121 Which of the following is the most appropriate method to solve for the roots of 11 quadratic equation 2.3x + 1.5x - 3,4 = 0? A. Extracting the Square Root C. Completing the Squares B. Factoring D. Quadratic Formula 12 The solutions to the quadratic equation ax? + bx + c = 0 are A. X* B. X- 中、下一代 a -*-40€ D. x = a 13 which is the correct substitution of the values of a, b and c in the quadratic formula of the equation 2(x2 - 2x) = 5? A. * = -313-4(175) C. X = =(-41-42-42)(-51 (3) B.rs --3-3-4(105) D. * = -21-5) 2011 2(2) Solve x - 6x + 2 = O using quadratic formula. 14 A. 2 + 5 c. 175 B. 3 1 7 D. +7​